I guess cobble together necessarily implies the likely falsity of the story, but that does not seem part of the inherent meaning. Just as a cobbled-together computer program is likely to be buggy and failure-prone. DCDuringTALK 22:36, 1 December 2012 (UTC)

There is only one word that fully answers to COB > COBBLE1, and that is Gaelic CAOB, (clod, lump, piece of anything cut off, et cetera)[5], in which sense, compare Pre-Celtic Pictish KEVV (stone)[4]. The √ is KĒPH[7]. CAOB, only in the senses above provides any relation to COB[7], that is possibly partially influenced by Germanic COP (head)[4]. Other senses of COB are from different origins than that of the Gaelic form[6]. The only one that might remotely answer to Welsh COP (head), in the sense of 'tuft' is the usage: 'COB wall'[4] - frequent in Cornwall; but even this is really dubious. In the sense of 'head', Welsh COP, I believe, is borrowed from Germanic[7].